Harden Fire Protection

Specializing in #firesprinklersystem repairs, testing, and certifications in Southern CA. We provide service to #commercial and #residential properties.

[Harden Fire Protection @Harden_Fire]

Did you know that many newly constructed ADUs in California require a residential fire sprinkler system?🔥

These photos show one of our latest fire sprinkler installations for a new ADU.

If your project requires fire sprinklers, contact us for a quote.

[Harden Fire Protection @Harden_Fire]

Maintaining proper pressure is critical. Regular inspections give peace of mind ensure everything is working exactly how it should.

Contact us today to schedule your residential or commercial fire sprinkler inspection.

[Harden Fire Protection @Harden_Fire]

This home has a built-in firefighter.

That gauge you see? It’s monitoring the system’s water pressure and tells an important story:

✔️ Normal pressure=system ready

🚫 0 PSI=system is OFF and will not protect you

⚠️ Too high=excessive pressure that can damage or burst pipes

[Harden Fire Protection @Harden_Fire]

Not the kind of ‘occupancy’ your fire sprinkler system was designed for.

Looks like this little tenant 🐦 turned a fire alarm bell into luxury real estate.

Unfortunately… not exactly code-compliant.

[Harden Fire Protection @Harden_Fire]

Not all pipe is created equal.

A repair was attempted on this fire sprinkler line using wrong materials. Using incorrect pipe can compromise the system, leading to leaks and damages.

Ensure repairs are done with approved materials and by a licensed C-16 fire protection company

[Harden Fire Protection @Harden_Fire]

Routine inspections keep small issues from becoming big problems.

Does your residential system need attention? Catching issues early makes all the difference. Small leaks, corrosion, pressure problems, or faulty components can compromise your protection when you need it most.

[Harden Fire Protection @Harden_Fire]

🔥 As 2025 comes to a close, now is the time to schedule your fire sprinkler inspection.

Annual and 5-year inspections are critical to ensure code compliance, system reliability, and protection of lives and property.

📅 Schedule today before year-end availability fills up.

[Harden Fire Protection @Harden_Fire]

When your fire sprinkler system is technically monitored… by spiders 🕷️🕸️

The existing flow switch was no longer operational and required replacement. The flow switch plays a critical role in the fire sprinkler system by detecting water flow during sprinkler activation.

[Harden Fire Protection @Harden_Fire]

We replace 63’ of fire sprinkler pipe that was corroded and leaking due to being subject to harsh conditions.

The pipe was painted with rust resistant paint to prevent corrosion in the future.

If your fire sprinkler system is in need of repair, contact us today.

[Harden Fire Protection @Harden_Fire]

This fire hydrant was struck and damaged. We replaced the hydrant and the channel for the underground control valve that was also damaged.

It is crucial that all fire protection equipment is repaired promptly to be ready in the event of a fire emergency.

[Harden Fire Protection @Harden_Fire]

Happy Holidays from Harden Fire Protection. Wishing everyone a safe and relaxing holiday season.

[Harden Fire Protection @Harden_Fire]

Residents in this community were having trouble with extreme water pressure in their residential fire sprinkler system.

For this client, we added a pressure reducing valve to reduce water pressure and to lower the risk of fire sprinkler leaks and pipe breaks.

[Harden Fire Protection @Harden_Fire]

This client's water meter was stolen from their fire sprinkler system's backflow. We installed a new meter and specialty lock to help deter and prevent future theft.

Regular inspections are important to discover deficiencies and issues affecting your fire sprinkler system.

[Harden Fire Protection @Harden_Fire]

Replaced the flow switch that did not operate during a 5-year fire sprinkler test and inspection.

What does a flow switch do? Should a fire sprinkler head activate, the flow switch indicates water flow, triggering the fire alarm and/or bell.

[Harden Fire Protection @Harden_Fire]

Don't forget about the fire hydrants when scheduling your annual or 5-year inspections.

The diffuser is connected to the fire hydrant to check the gallons per minute that the hydrants puts out.

[Harden Fire Protection @Harden_Fire]

Happy New Year! Started the new year off with a fire sprinkler tenant improvement to add coverage for a new layout and ceiling.

Serving Southern California, let Harden Fire be your preferred vendor for all of your fire protection needs.

Contact us for more info.

[Harden Fire Protection @Harden_Fire]

Watch to find out why this FDC is leaking.

The FDC serves as a connection for the fire department so they can pump water into the fire sprinkler system in the event of a fire emergency.

[Harden Fire Protection @Harden_Fire]

@STLChrisH Don’t forget fire sprinklers 🔥

[Harden Fire Protection @Harden_Fire]

Depending on the size of the building and water supply, there may be multiple fire sprinkler risers to supply adequate coverage. Each fire sprinkler system needs to be individually tested during the annual and 5-year inspections.

[Harden Fire Protection @Harden_Fire]

Did you know fire sprinkler heads are have different colors depending on the temperature they are set to activate at? A yellow bulb is set to activate at 175°F and is often placed in an area like a garage that would call for a slightly higher temperature rating than inside a home